LASCO 03-1061 Chrome Plated Plastic Body Kitchen Sink Basket Strainer Assembly for 3-1/2-Inch Opening Chrome plated Kitchen sink 3-1/2-inch opening, includes white plastic strainer with plastic post and rubber stopper Sink basket strainer for 3 1/2 inch drains For use as Duo strainer for lavatory/kitchen sinks, with locknut and washer